SALICACEAE. — SALIX 115 



51. Salix sikkimensis Andersson in De Candolle, Prodr. XVI. pt. 2, 2G8 (1868).— 

 Hooker f., Fl. Brit. Ind. V. 632 (1888). — Brandis, Ind. Trees, 638 (1906). 



INDIA. Sikkim : " Lachen valley, alt. 13000 ped." June 13, 1849, J. D. Hooker 

 (type; 9). 



I have seen a branchlet of the type specimen which agrees very well with Anders- 

 Bon's description, only the pubescence of the leaves and catkins is not really " cu- 

 preo-micans," but more yellowish white. The species differs from the others of 

 this section in the nearly sessile catkins, but I have only seen very young amenta 

 appearing with the leaves. The d^ plant mentioned by Hooker f . I do not know, 

 but the 9 flowers are very much like those of S. Ernesti Schneider or of other 

 species of the Eriostachyae. The ovaries are not sessile, but very short-stalked, the 

 pedicel being only one third the length of the rather long gland. There is no small 

 dorsal gland as in S. Ernesti. The bracts of the young flowers are very large, 

 broadly obovate, round at the apex and somewhat crenulate, and nearly envelop 

 the whole flower. The deeply cleft styles are about one-half as long as the pubescent 

 ovaries, the stigmas are rather short, obovate, emarginate or bifide. The stout 

 flowering branch resembles that of S. Caprea Linnaeus or of S. daphnoides Villars 

 and is apparently somewhat glaucous. The mature leaves are not yet known. 



Burkill (in Jour. Linn. Sac. XXVI. 532 [1899]) mentions S. sikkimensis from 

 Yunnan (Delavay No. 2792), but I have not seen the specimen. 



Sect. 11. PSILOSTIGMATAE Schneider, n. sect. 



Arbores v. frutices alti, rarius parvi. Folia elliptica v. pleraque ovato-lanceolata 

 V. lanceolata, satis magna v. mediocra, rarius parva, subtus pleraque sericea v. 

 sericeo-tomentella, plus minusve nervosa sed rarius reticulata. Amenta brevius 

 V. longius pedunculata, cylindrica, densiflora, 9 pleraque 3-12 cm. longa; flores cf 

 diandri glandulis 2 separatis; flores 9 v. fructus sessiles; ovaria sericea v. tomen- 

 tella (in specie dubiae affinitatis glabra), stylo brevi v. satis longo, bipartito v. 

 bifido, stigmatibus bifidis coronata; glandula una ventralis. 



I have some doubt whether the species, united by me in this new section, form a 

 natural group. S. Daltoniana Andersson may perhaps be better placed in the 

 preceding section, while S. Thomsoniana Andersson differs from the others in being 

 a very low shrub with small leaves. 



52. Salix Daltoniana Andersson in Jour. Linn. Soc. IV. 49 (1860) ; in De Candolle, 

 Prodr. XVI. pt. 2, 269 (1868). — Hooker f., Fl. Brit. Ind. V. 632 (1888). — Brandis, 

 Ind. Trees, 637 (1908). 



INDIA. Sikkim : " reg. temp., alt. 9000-14500 ped." (Andersson says 1868: 

 14000), J. D. Hooker (t>T5e, of which I have seen a co-type). Bhutan: without 

 locality, W. Griffith (No. 4498, ex Hooker). 



Burkill (in Jour. Linn. Soc. XXVI. 528 [1899]), refers to S. Daltoniana some forms 

 collected by Delavay in Yunnan, of which I have not seen specimens. He also 

 describes a var. Franchetiana, the types of which were collected by David in 

 Mupin and by Mussot (No. 348) at Tachien-lu. In this variety the gland appears, 

 according to Burkill, to be single, while two are present in the type. Without 

 having seen this specimen, I cannot tell anything about this variety or about Dela- 

 vay's No. 988 from Tali in which Burkill recognized " a hybrid between S. Dal- 

 toniana and -S. elegans" (= S. denticulata Andersson). The last species, so far 

 as I know, is a native of the northwestern Himalaya and Afghanistan and does 

 not occur in China. 



S. Daltoniana, var. crassijulis Andersson (in De Candolle, Prodr. XVI. pt. 2, 

 279 [1868]), the type of which was collected by J. D. Hooker in Sikkim between 

 " 9000-14000 ped.," I know only from Andersson's description, but I think it 

 belongs to a different species. 



